sta33013tr STMicroelectronics, sta33013tr Datasheet - Page 4

• Manufacturer Part Number: sta33013tr
• Description: 2.0 Digital Audio Processor With Ffx Digital Modulator And Analog And Digital Inputs
• Manufacturer: STMicroelectronics

Introduction
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Introduction
The STA330 is a digital stereo audio processor with analog and digital input. It includes an
audio DSP and FFX, a ST proprietary high-efficiency class-D driver. In conjunction with a
power device, the STA330 provides high-quality digital amplification.
The STA330 contains an on-chip volume/gain control.
The PWM amplifier achieves greater than 90% efficiency for longer battery life for portable
systems.
The STA330 I2CDIS pin disables the audio DSP functions to provide a direct conversion of
the input signal into output power (the I
without the microcontroller.
The STA330 is designed for low-power operation with extremely low-current consumption in
standby mode. It is available in the package VFQFPN52, a very thin (1.2 mm thick) package
that can be used for small portable applications.
Figure 1.
VBIAS
VCM
VLO
INR
VHI
INL
PGA
Block diagram
audio interface
Serial digital
ADC
ADC
OSC
2
C interface is disabled). This conversion is done
volume
Digital
PLL
PWM out I/F
modulator
FFX
Divider
interface
PWM
driver
PWM
driver
Control
STA330
OUT1A
OUT1B
OUT2A
OUT2B